Craftsman 917.255561 Service An Adjustments, To Level Mower Housing, Adjustablepivot Bracket, Fig

SERVICE AN ADJUSTMENTS

TO LEVEL MOWER HOUSING

Adjust the mower'while tractor is parked on level ground or driveway. Make sure tires are properly inflated (See "PRODUCT SPECIFICATIONS" on page 3). If tires are over or under inflated, you will not properly adjust your mower.

SIDE-TO-SIDE ADJUSTMENT (See Figs. 18 and 19)-

You will need two (2) standard 2 x 4 short pieces of wood to make the following adjustment. Similar blocks measur- ing 1-1/2" thick may also be used_

oRaise mower with attachment lift control to allow two

(2)1-1/2" thick blocks to be placed under rear edge of mower directly behind mandrels..

Lower mower deck to its lowest height of cut posit!on (See 'q'OADJUST MOWER CUTTING HEIGHT' in

Operation section of this manual)_

On both sides of tractor, loosen, but do not remove, the fasteners securing the adjustable pivot brackets to frame. Both brackets must be loose enough to move freely.

Pull down firmly on suspe_'sion arm to remove any slack in pivot bracket and h_ld while tightening rear fastener first to secure. Tighte, remaining fastener°

0Repeat procedure on other side of tractor.

ORaise mower with attachment lift control and remove blocks from under mower°

PLACE TWO (2) 1_1/2" THICK BLOCKS UNDER REAR EDGE OF

DECK (Use wood2 x 4'sor equivalent)

FRONT-TO-BACK ADJUSTMENT (See Figs_ 20 and 2'1)-

IMPORTANT: DECK MUST BE LEVEL SIDE-TO-SIDE. IF THE FOLLOWING FRONT-TO-BACK ADJUSTMENT IS

NECESSARY, BE SURE TO ADJUST BOTH FRONT LINKS EQUALLY SO MOWER WILL STAY LEVEL SIDE-TO-

SIDE.

To obtain the best cutting results, the mower housing should be adjusted so that the front is approximately 1/4" to 3/4" lower than the rear when the mower is in its highest position.

Check adjustment on right side of tractor. Measure dis- tance"D directly in front and behind the mandrel at bottom

edge of mower housing as shown.

Before making any necessary adjustments, check that both front links are equal in length. Both links should be approximately 10-3/8 ",

=If links are not equal in length, adjust one link to same length as other link1

oTo tower front of mower loosen nut "E" on both front links an equal number of turns..

,When distance "D" is 1/4" to 3/4" lower at front than

rear, tighten nuts "F" against trunnion on both front links.

•To raisefrontof mower, loosen nut "F"from trunnion on

both front links. Tighten nut "E" on both front links an equal number of turns°

-When distance "D" is 1/4" to 3/4" lower at front than rear, tighten nut "F" against trunnion on both front links.

•Recheck side-to_side adjustment.

MANDREL

FIG. 20

BOTH FRONT LINKS MUST BE EQUAL IN LENGTH

MOWERMUSTBEN LOWESTHEIGHTOFCUTPOS_N

FIG. 18

ADJUSTABLEPIVOT

BRACKET

FASTENERS

SUSPENSION ARM,

PULLDOWN AND _GHTEN REAR

FASTENER FIRST

NUT"E"

FRONTUNKSTRUNNION

FIG. 19 19 FIG. 21